Who wins this and how?? I'm leaning towards Berto simply because he's been a welterweight for some time. He has respectable handspeed and some (power). Anyone who can punch themselves out of a wet paper bag will be a threat to Khan.

Khan. Berto is like SD Jones from pro wresting back in the day. He's a jobber to the stars. Khan can just fight from a distance and overwhelm Berto with his length and speed-so long as he doesn't get his chin touched.

Berto stops khan. Khan cant exploit any of bertos weaknesses. Physical fighters hurt berto. Khan is not physical in any way shape or form. Khan can certainly outbox berto but bertos speed and strength will be too much for khan. Even in bertos losses he gets to his opponents at least once. He will get to khan and khan would be hurt. Bad matchup for khan